TY - JOUR
T1 - Radion stabilization in compact hyperbolic extra dimensions
AU - Nasri, Salah
AU - Silva, Pedro J.
AU - Starkman, Glenn D.
AU - Trodden, Mark
PY - 2002
Y1 - 2002
N2 - We consider radion stabilization in hyperbolic brane-world scenarios. We demonstrate that in the context of Einstein gravity, matter fields which stabilize the extra dimensions must violate the null energy condition. This result is shown to hold even allowing for Friedmann-Robertson-Walker-like expansion on the brane. In particular, we explicitly demonstrate how one putative source of stabilizing matter fails to work, and how others violate the above condition. We speculate on a number of ways in which we may bypass this result, including the effect of Casimir energy in these spaces. A brief discussion of supersymmetry in these backgrounds is also given.
AB - We consider radion stabilization in hyperbolic brane-world scenarios. We demonstrate that in the context of Einstein gravity, matter fields which stabilize the extra dimensions must violate the null energy condition. This result is shown to hold even allowing for Friedmann-Robertson-Walker-like expansion on the brane. In particular, we explicitly demonstrate how one putative source of stabilizing matter fails to work, and how others violate the above condition. We speculate on a number of ways in which we may bypass this result, including the effect of Casimir energy in these spaces. A brief discussion of supersymmetry in these backgrounds is also given.
UR - http://www.scopus.com/inward/record.url?scp=0037104558&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037104558&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.66.045029
DO - 10.1103/PhysRevD.66.045029
M3 - Article
AN - SCOPUS:0037104558
VL - 66
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 0556-2821
IS - 4
M1 - 045029
ER -